EP1299050B1 - Stent delivery device - Google Patents
Stent delivery device Download PDFInfo
- Publication number
- EP1299050B1 EP1299050B1 EP01944456A EP01944456A EP1299050B1 EP 1299050 B1 EP1299050 B1 EP 1299050B1 EP 01944456 A EP01944456 A EP 01944456A EP 01944456 A EP01944456 A EP 01944456A EP 1299050 B1 EP1299050 B1 EP 1299050B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- handle
- control member
- control
- shaft
- outer tubular
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/9517—Instruments specially adapted for placement or removal of stents or stent-grafts handle assemblies therefor
Abstract
Description
- The present invention relates generally to catheter-based systems for treating a remote location within a patient, and more particularly to handles for stent delivery systems, electrophysiology devices and the like, which include a catheter and a retractable sheath thereon.
- Devices having a retractable sheath associated with a catheter are used to treat a variety of conditions using endoluminal methods instead of open surgical procedures. For example, angioplasty and stent implantation procedures are often used to treat atherosclerotic disease or other occlusive conditions in blood vessels, such as the coronary and carotid arteries. During angioplasty, for example, a catheter having an uninflated balloon on its distal end is percutaneously introduced into a patient's vasculature and advanced to a target treatment location, such as a stenosis within a blood vessel. Once the balloon is properly placed across the stenosis, the balloon is inflated to enlarge the lumen at the location. The balloon is then deflated, the inflation/deflation procedure may be repeated, and then the catheter is then withdrawn from the patient's body.
- Often in conjunction with angioplasty, a stent or other tubular prosthesis may be implanted within a stenosis to scaffold the location and prevent it from contracting or otherwise becoming obstructed again. The stent, in a contracted condition, is generally placed upon a catheter, possibly over a balloon. The catheter is advanced to the target stenosis until the stent is adjacent to the location, and then the stent is deployed and substantially anchored at the location. The stent may be biased to expand to an enlarged condition and/or may be expanded with the aid of a balloon, as with plastically deformable stents, until the stent substantially engages the wall of the vessel. Once the stent is implanted, the delivery catheter is withdrawn from the patient.
- Similarly for ablation procedures and the like, a catheter including an array of electrodes, for example, on an expandable basket assembly, may be provided. The device may be introduced into a body lumen, for example through the patient's vasculature into the heart, to treat conditions, such as heart arrhythmia.
- With any of these systems, a sheath may be provided over the distal end of the catheter to protect the components on the distal end, such as a balloon, a stent, an array of electrodes, and the like. The sheath may be advanced distally over the proximal end of the catheter until it covers the distal end and its components, or, alternatively, the distal end of the catheter may be introduced into the sheath, and advanced until it is proximate the distal end of the sheath. Once the distal end of the catheter is properly positioned at a desired location within a body lumen, the sheath may be retracted to expose the distal end of the catheter. After treatment, the sheath may be advanced back over the distal end of the catheter, and the entire device withdrawn from the patient.
- To cause the sheath to retract, the proximal end of the sheath outside the patient may simply be pulled while holding the catheter in a fixed position. This, however, may not provide very precise control of the retraction of the sheath. To provide improved control, handle devices have been proposed that include a wheel and screw mechanism. A wheel extending around the circumference of the handle is coupled to a screw mechanism engaging the sheath and the catheter. As the wheel is rotated about the longitudinal axis of the handle, the screw mechanism directs the sheath axially with respect to the catheter
- For example, European Patent Publication No. EP-A1-0,990,426 describes a disposable delivery device for endoluminal prostheses. Optionally a sheath is withdrawn from over a tightly compressed prosthesis using an actuation mechanism having a variable mechanical advantage which varies with the position of the sheath. The deployment system may include a "one-way" rotation mechanism. In one embodiment, the actuation mechanism for withdrawing the sheath is contained in a removable actuation housing which is coupled to an introducer valve using a brace rod, and the actuation handle rotates perpendicular to the axis of the sheath.
- With such devices, however, it may be difficult to remember which direction, i.e., clockwise or counterclockwise, is appropriate either to retract or advance the sheath with respect to the catheter. This may be particularly important when immediate action is necessary because of a complication during a procedure. Moreover, in such devices, it is possible to advance the sheath in the distal direction during and after deployment of the device, such as a stent, on the distal end of the catheter. This distal movement may result in the improper placement and unwanted movement of the deployed device. This distal movement of the sheath is particularly problematic in the deployment of stents or other tubular prostheses. It is preferred that a catheter-sheath system have only unidirectional motion, i.e. only permit retraction of the sheath in the proximal direction, as in European Patent Publication No. EP-A1-0,990.426.
- Another disadvantage in current screw-type devices is that the devices are often complicated, including many parts which may be difficult to assemble and/or expensive to make.
- Accordingly, there is a need for more intuitive, more simple, and/or less expensive devices for controlling catheter-sheath systems.
- In a first aspect of the invention, a handle device for an endoluminal treatment device having an elongate inner member and an outer tubular member comprises a handle member adapted to be mounted to the elongate inner member; and a control member having an engagement member adapted to engage the outer tubular member, characterised in that the control member is slidably coupled to the handle member; and the handle apparatus further comprises: a shaft rotatably mounted to the handle member and coupled to the control member such that rotation of the shaft displaces the control member axially with respect to the handle member; and a needle bearing clutch disposed in the handle member, the shaft engageable with the needle bearing clutch for limiting rotation of the shaft to only one direction.
- Thus, in a preferred embodiment, a unidirectional handle device for an endoluminal device includes an outer tubular member and an elongate inner member slidably received in the outer tubular member. The elongate inner member is detachably mounted to the unidirectional handle device. The unidirectional handle device includes a handle member, a needle bearing clutch disposed in the handle member, a control member guide in the handle member, and a shaft. The shaft is disposed in the handle member and rotatable in a single direction. The shaft engages with the needle bearing clutch and is in rotational engagement with the outer tubular member. The outer tubular member is slidable from a distal position to a proximal position when the shaft is rotated in the single direction.
- In another embodiment, the unidirectional handle includes a handle member, a needle bearing clutch disposed in the handle member, a control member slidably disposed in the handle member, and a shaft. The control member is mounted at one end thereof to the outer tubular member. The shaft is mounted to the handle member and rotatable in a single direction by engaging with the needle bearing clutch. The shaft further includes a gear mounted thereon, wherein the gear is engaged with the control member. The control member is slidable from a distal position to a proximal position and not slidable from a proximal position to a distal position.
- In still another embodiment, the unidirectional handle device includes a handle member including a grip portion and a body portion. The body portion includes a transverse bore and a control member guide therein. A needle bearing clutch is disposed in a clutch recess located in the body portion, the needle bearing clutch and the clutch recess are coaxial with the transverse bore. A control member is slidably moveable within the control member guide of the body portion with the control member engaged at one end with the outer tubular member. The handle device includes a control knob including a shaft and gear thereon. The shaft engages with the needle bearing clutch while the gear engages with the control member. The control member is slidable from a distal position to a proximal position.
- In still another embodiment, the handle device includes a handle member, a needle bearing clutch disposed in the handle member, and a control member slidably disposed in the handle member. The control member is mounted at one end thereof to a hydrostatic valve assembly. A control knob is mounted to the handle member and rotatable in a single direction, the control knob including a shaft engaging with the needle bearing clutch. The shaft further includes a gear engaged with the control member, the control member being slidable from a distal position to a proximal position and not slidable from a proximal position to a distal position
- In yet another embodiment, a unidirectional handle device for an endoluminal device includes an outer tubular member and an elongate inner member slidably received in the outer tubular member. The unidirectional handle includes a handle member including a grip portion and a body portion, the body portion including a transverse bore and a control member guide therein. The body portion further includes an inner member recess for detachably mounting the elongate inner member. A needle bearing clutch is disposed in a clutch recess located in the body portion, wherein the needle bearing clutch and the clutch recess are coaxial with the transverse bore. A control member is slidably moveable within the control member guide of the body portion, the control member further includes a rail portion including a plurality of teeth thereon. The control member is releasably engaged at one end thereof with the outer tubular member. A control knob is provided and includes a shaft and gear thereon. The shaft engages with the needle bearing clutch and the gear engages with the teeth of the rail portion. The control member is slidable from a distal position to a proximal position and not slidable from a proximal position to a distal position.
- In another separate aspect of the invention, a system for delivering an endoluminal prosthesis within a body lumen of a patient comprises an endoluminal treatment device having an elongate inner member slidably disposed within an outer tubular member; a handle member adapted to be mounted to the elongate inner member, the elongate inner member being axially fixed with respect to the handle member; and a control member having an engagement member adapted to engage the outer tubular member, characterised in that the control member is slidably coupled to the handle member; the outer tubular member extends distally from the control member; and the system further comprises a shaft rotatably mounted to the handle member, the shaft including a gear coupled to the control member such that rotation of the shaft displaces the outer tubular member axially with respect to the elongate inner member; and a needle bearing clutch disposed in the handle member, the shaft engageable with the needle bearing clutch for limiting rotation of the shaft to only one direction, such that when the shaft is rotated in the one direction, the outer tubular member is directed from a distal position to a proximal position.
- Thus, in a preferred embodiment, a catheter-sheath system for delivering a stent to a patient includes an outer tubular member, an elongate inner member slidably received in the outer tubular member, and a handle device for imparting unidirectional movement of the outer tubular member relative the elongate inner member. The handle includes a handle member, a needle bearing clutch disposed in the handle member, a control member slidably disposed in a control member guide in the handle member. The control member is engaged at one end thereof to the outer tubular member. A control knob is mounted to the handle member and rotatable in a single direction. The control knob includes a shaft engaging with the needle bearing clutch. The shaft further includes a gear engaged with the control member, the control member being slidable from a distal position to a proximal position and not slidable from a proximal position to a distal position.
- FIG. 1 is an exploded view of the handle device showing the handle member, one aspect of the control member, and the control knob.
- FIG. 2(a) is an end view of the handle device showing the handle member, the roller bearing clutch, and the control knob.
- FIG. 2(b) is an end view of one aspect of the control member.
- FIG. 3 is a side view of the handle member.
- FIG. 4 is a side view of an endoluminal device showing the outer tubular member, the hemostatic valve assembly, and the elongate inner member.
- FIG. 5(a) is an enlarged side view of a stent contained within the outer tubular member and the elongate inner member disposed adjacent to the stent.
- FIG. 5(b) is an enlarged side view of a stent contained within the outer tubular member, wherein the stent is located on the elongate inner member.
- FIG. 6 is a side view of one embodiment of the control member and outer tubular member.
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- Turning now in detail to the drawings, Figures 1, 3, and 4 show a
handle device 2 in accordance with the invention that may include as few as three parts, namely, a handle member 4, ashaft 54, andneedle bearing clutch 130. - In one preferred embodiment of the invention, the
handle device 2 includes a handle member 4, acontrol knob 50, and acontrol member 30. The handle member 4,control knob 50, andcontrol member 30 can be made of materials such as molded or machined plastic, or stainless steel. Any material commonly used within the medical device field can be used in thehandle device 2. - Turning in more detail to the handle member 4, the handle member 4 preferably comprises a
grip portion 6 and abody portion 8. Thegrip portion 6 is generally tubular in shape and projects from thebody portion 8 at an oblique angle. In use, thegrip portion 6 preferably extends in a forward or distal direction away from the user. - Referring to Figures 1, 2, and 3, the
body portion 8 includes atransverse bore 10 passing through theentire body portion 8, As best seen in Figure 2, a needle bearingclutch recess 12 and agear recess 14 are located on opposing sides of thebody portion 8. Both the needle bearingclutch recess 12 and thegear recess 14 are coaxial with thetransverse bore 10. - Also located within the
body portion 8 is acontrol member guide 16. Thecontrol member guide 16 preferably passes entirely through thebody portion 8. In this manner, thecontrol member guide 16 is preferably a bore through thebody portion 8. It should be understood, however, that thecontrol member guide 16 can be located on a side of the body portion 8 (having one side exposed to the outside environment) or thecontrol member guide 16 can be a separate component external to thebody portion 8. In addition, thecontrol member guide 16 is preferably substantially perpendicular to thetransverse bore 10. Of course, other orientations of thetransverse bore 10 andcontrol member guide 16 are possible, i.e., parallel, angular, and the like, and are intended to fall within the scope of the invention. - Referring now to Figures 1 and 2, the
control member guide 16 preferably has one or more guide pins 24 projecting therein. The guide pins 24 preferably are affixed to thebody portion 8. The guide pins 24 slidably engage with agroove 36 located in thecontrol member 30 when thecontrol member 30 is positioned inside thecontrol member guide 16. Thecontrol member guide 16 also includes anopening 22 therein, as shown in Figure 2, in communication with thegear recess 14. Theopening 22 allows thegear 56 of thecontrol knob 50 to engage withteeth 34 of thecontrol member 30. In this way, movement of thecontrol knob 50 controls movement of thecontrol member 30. - Referring to Figures 1, 2, and 3, the
body portion 8 of the handle member 4 includes aninner member recess 20 along one side of thebody portion 8. Theinner member recess 20 is used to detachably mount an elongateinner member 90. The elongateinner member 90 is preferably press-fit into theinner member recess 20 by the user. In this manner, the elongateinner member 90 is fixed relative to thehandle device 2. The elongateinner member 90 can comprise any number of structures such as, by way of illustration and not limitation, catheters, guidewires, bumpers, and the like. With reference to Figure 4, the elongateinner member 90 includes at a proximal end thereof aproximal attachment member 96. Theproximal attachment member 96 is press-fit or the like into theinner member recess 20. Theproximal attachment member 96 advantageously has a corresponding profile and geometry as theinner member recess 20. In this regard, the elongateinner member 90 is properly secured to thehandle device 2.Threads 98 or other connectors may be located on a proximal end of theproximal attachment member 96 so the elongateinner member 90 may attach to additional devices (not shown). - With reference to Figure 4, a description of the components of one example of an endoluminal device 1 will now be described. The endoluminal device 1, in its most general format, can comprise an elongate
inner member 90 and an outertubular member 110. In Figure 4, the outertubular member 110 includes aflexible sheath 114 and a separatehemostatic valve assembly 60. It should be understood, however, that the outertubular member 110 can comprise only one component such asflexible sheath 114 or the like. -
Flexible sheath 114 includes a lumen therein (not shown) for the passage of the elongateinner member 90. The flexible sheath may include a generally cone-shapedproximal transition member 112 to aid in fastening theflexible sheath 114 to thehemostatic valve assembly 60. - The
hemostatic valve assembly 60 has a generallytubular body 62 having acentral lumen 64 therein. Thecentral lumen 64 is in fluid communication with the lumen of the proximal transition member 112 (not shown) andflexible sheath 114 lumen (not shown) when attached to thehemostatic valve assembly 60. Thehemostatic valve assembly 60 preferably includes an optionalflush port 80 having aflush lumen 82 therein that is in fluid communication with thecentral lumen 64 of thehemostatic valve assembly 60. Theflush port 80 may be used to introduce fluid into theflush lumen 82 andcentral lumen 64 as will be appreciated by those skilled in the art. Adistal engagement member 66 is located at the distal end of thehemostatic valve assembly 60. Thedistal engagement member 66 is preferably rotational about its axis. Thedistal engagement member 66 is sealed with respect to thehemostatic engagement member 60 viaseal 70. Thedistal engagement member 66 includesthreads 68 that engage in a sealed fashion withcorresponding threads 116 on theproximal transition member 112 of theflexible sheath 114. - The proximal end of the
hemostatic valve assembly 60 includes aproximal engagement member 72 that has a generally tubular construction. On the exterior of theproximal engagement member 72 are located a plurality ofthreads 74. Aseal 78 is affixed inside thehemostatic valve assembly 60 adjacent to theproximal engagement member 72. - Still referring to Figure 4, the endoluminal device 1 comprises an elongate
inner member 90. A catheter is shown in Figure 4 as the elongateinner member 90. Preferably, the elongateinner member 90 includes a lumen therein (not shown) such that a guidewire or the like can be used to feed and position the elongateinner member 90 into the vasculature of a patient. Anend cup 76 surrounds the elongateinner member 90 when positioned inside thehemostatic valve assembly 60. Theend cup 76 includes an internaltubular projection 77 therein having a lumen for the passage of the elongateinner member 90. Aseal 79 is advantageously located distal to theend cup 76.Threads 84 are located inside theend cup 76. During operation, the elongateinner member 90 is fed through the internaltubular projection 77 of theend cup 76, through theseals central lumen 64 of thehemostatic valve assembly 60. When theend cup 76 is screwed onto theproximal engagement member 72, a seal is formed at the proximal end of thehemostatic assembly 60. A sealing engagement is made by compressing theseal 79 between theseal 78 and thetubular projection 77. - An optional
flexible tip 94 can be affixed to the end of the elongateinner member 90 when the elongate member is not used as a bumper, i.e., when astent 150 is placed distal to the elongateinner member 90 inside theflexible sheath 114. Theflexible tip 94, when used, includes a lumen therein (not shown) so a guidewire or the like can pass through. - The proximal end of the elongate
inner member 90 is attached to theproximal attachment member 96. The proximal attachment member also includes a lumen therein (not shown) in communication with the lumen of the elongateinner member 90. When a guidewire or the like is used, it is fed into the elongateinner member 90 through theproximal attachment member 96. - Referring now to Figures 1 and 2, the
control knob 50 andcontrol member 30 will now be described. Thecontrol knob 50 preferably includes a generalcircular wheel portion 52. While a circular-shapedwheel 52 is preferred, other shapes and geometries are possible and within the scope of the invention. Ashaft 54 projects in one direction from thewheel 52 and is fixedly secured thereto. Theshaft 54 projects generally perpendicular to the plane of thewheel 52. The diameter of theshaft 54 is approximately equal to the inner diameter of thetransverse bore 10. Agear 56 is fixedly secured onto theshaft 54 and includes a plurality ofteeth 57. During operation, thecontrol knob 50 is inserted into thehandle device 2. Theshaft 54 passes through thetransverse bore 10 and into a needle-bearing clutch 130 located therein. While thecontrol knob 50 is preferred due to the incorporation of thewheel portion 52, it should be appreciated that thehandle device 2 may operate within the scope of the invention using only ashaft 54. - The
control member 30 preferably includes arail 32 and anengagement member 38. Therail 32 includes agroove 36 on the upper side thereof. Thegroove 36 engages with guide pins 24 in the handle member 4 when thecontrol member 30 is inserted into thehandle device 2.Teeth 34 are located along the underside of therail 32. Theteeth 34 engage withcorresponding teeth 57 of thegear 56 of thecontrol knob 50 when thecontrol member 30 is positioned inside thehandle device 2 with thecontrol knob 50 in place. At one end of therail 32 is located anengagement member 38. Theengagement member 38 includes arecess 40 therein for engaging with the outertubular member 110 orhemostatic valve assembly 60. As shown in Figures 1 and 2, therecess 40 engages with thetubular body 62 of thehemostatic valve assembly 60. In this embodiment, theengagement member 38 snaps-on and/or is press-fit onto thehemostatic valve assembly 60. It should be understood, however, that theengagement member 38 can directly affix to the outertubular member 110 on any component or structure secured to the outertubular member 110. Theengagement member 38 and in a more general sense thecontrol member 30 serve to forcibly move the outertubular member 110 relative to the fixed elongateinner member 90. - Figures 1, 2, and 3 show the
needle bearing clutch 130. Theneedle bearing clutch 130 has an outer chamber diameter substantially equal to the needle bearingclutch recess 12. Theneedle bearing clutch 130 is secured to thebody portion 8 of thehandle device 2 by press-fitting or through use of an adhesive or the like. The needle bearing clutch 130 generally includes a plurality of needle rollers held within a cage inside an outer cup. Springs are associated with each of the needle rollers. Theneedle bearing clutch 130 is designed to transmit torque between theshaft 54 and the needle bearing clutch 130 in one direction and allow free overrun in the opposite direction. Generally, precisely formed interior ramps provide surfaces against which the needle rollers wedge to positively transmit a locking torque when theshaft 54 is turned in one direction. Theneedle bearing clutch 130 is preferably obtained from the Torrington Company, 59 Field Street, P.O. BOX 1008, Torrington, CT 06790-1008. The needle bearing clutch 130 advantageously permits the transition from overrun (rotation) to lock with minimal lost motion or backlash. In this regard, thehandle device 2 has substantially no backlash motion of the outertubular member 110. Substantially no backlash is meant to indicate that there is no appreciable movement of the outertubular member 110 in the distal direction that would destroy the tension-retaining effect of thehandle device 2. This anti-backlash feature is particularly advantageous for the clinical deployment of self-expandingstents 150. Specifically, the anti-backlash feature prevents theflexible sheath 114 or outertubular member 110 from "springing back" if the clinician stops the motion or releases the input torque on thecontrol knob 50. In this fashion, the needle bearing dutch 130 provides for slow, controlled retraction of the outertubular member 110 orflexible sheath 114. - Figures 5(a) and 5(b) show a close-up view of the distal end of the
flexible sheath 114 containing a loadedstent 150 and elongateinner member 90. In Figure 5(a), thestent 150 is loaded adjacent to the elongateinner member 90. In this manner, the elongateinner member 90 acts as a bumper, wherein the distal end abuts the end of thestent 150 duringstent 150 deployment. - In Figure 5(b), the
stent 150 is loaded on the elongateinner member 90. Thestent 150 thus surrounds the elongateinner member 90. The configurations shown in Figures 5(a) and 5(b) are within the scope of the invention. - A description will now be given of the operation of the
handle device 2. For ease of description, it is assumed that thestent 150 or other device is loaded and the elongateinner member 90 is within the outertubular member 110 orflexible sheath 114. Initially, the elongateinner member 90 is secured to the body portion of the handle member 4 by pressing theproximal attachment member 96 into theinner member recess 20. The elongateinner member 90 is thus fixed (in the axial direction) with respect to thehandle device 2. In one aspect of the invention, thecontrol member 30, which is located within thecontrol member guide 16, is then affixed to the outertubular member 110. If ahemostatic valve assembly 60 is used, thecontrol member 30 is attached to thehemostatic valve assembly 60. At this point, thecontrol knob 50 is in position within thehandle device 2 with theshaft 54 engaging with theneedle bearing clutch 130. Theteeth 57 of thegear 56 are engaged with the correspondingteeth 34 of therail 32. During deployment of thestent 150, the outertubular member 110 is retracted in the proximal direction, while the elongateinner member 90 remains fixed in the axial direction. Thecontrol knob 50, which is rotatable in only one direction due to the needle bearing clutch 130, retracts thecontrol member 30 within thehandle device 2. The outertubular member 110; which is engaged with thecontrol member 30, is retracted as well. The outertubular member 110 is retracted until thestent 150 or other device is deployed. Since theshaft 54 of thecontrol knob 50 engages with the needle bearing clutch 130, thecontrol knob 50 turns in only one direction to retract the outertubular member 110 in the proximal direction. It should be appreciated that thehandle device 2 is unidirectional in that the outertubular member 110 is only moveable in one direction, the proximal direction, relative to the elongateinner member 90. - The unidirectional aspect of the
handle device 2 provides several benefits. Initially, thehandle device 2 prevents a user from accidentally moving the outertubular member 110 in the distal direction. In this manner, the outertubular member 110 cannot collide or push astent 150 that has already deployed. In addition, the outertubular member 110 is in constant tension during retraction when thehandle device 2 is used. This tension-retaining feature is particularly important because the outertubular member 110, and in particular theflexible sheath 114, have a tendency to stretch to some extent. With thehandle device 2 described herein, when the outertubular member 110 orflexible sheath 114 is retracted a certain distance by rotation of thecontrol knob 50 and let go, the tension or stretch in the outertubular member 110 orflexible sheath 114 remains. It is generally preferable to retain this tension in the outertubular member 110. Existing devices may not have this tension-retaining effect and recoil to a certain extent, once movement of the sheath stops. In prior devices, the sheath has a tendency to deform or change the shape once retraction has stopped. - Figure 6 illustrates an embodiment of the control member and the outer tubular member. In this embodiment, the outer
tubular member 110 includes at a proximal end thereof, acontrol member 160. Thecontrol member 160 of the outertubular member 110 is formed contiguous with the outertubular member 110 and is not separate likecontrol member 30 shown in Figures 1 and 2. Thecontrol member 160 can be considered part of the outertubular member 110. Preferably, thecontrol member 160 includes agroove 162 along its length. Thegroove 162 engages with one or more guide pins 24 in the handle member 4. In addition, thecontrol member 160 preferably includesteeth 164 along a portion of its length. In this embodiment, thecontrol member 160 engage withteeth 57 ofgear 56. In this embodiment, the outertubular member 110 directly engages with thegear 56 of theshaft 54. Theshaft 54 is in rotational engagement with the outertubular member 110. - It should be understood that various modifications of the above-described device are intended to fall within the scope of the claims. For example, it is possible to eliminate the
wheel portion 52 of thecontrol knob 50 and control rotational motion by direct manipulation of theshaft 54. Also, while a gear and tooth arrangement has generally been described as coupling movement of theshaft 54 with the control member guides 30, 160, alternative mechanisms can be employed. For example, various gear, screw, and even friction-based arrangements may be employed to translate unidirectional rotational motion of theshaft 54 into linear translation of the outertubular member 110. While embodiments of the present invention have been shown and described, various modifications may be made without departing from the scope of the present invention. The invention, therefore, should not be limited, except to the following claims, and their equivalents.
Claims (20)
- A handle apparatus (2) for an endoluminal treatment device (1) having an elongate inner member (90) and an outer tubular member (110), comprising:a handle member (4) adapted to be mounted to the elongate inner member (90); anda control member (30) having an engagement member (38) adapted to engage the outer tubular member (110),the control member (30) is slidably coupled to the handle member (4); andthe handle apparatus (2) further comprises:a shaft (54) rotatably mounted to the handle member (4) and coupled to the control member (30) such that rotation of the shaft (54) displaces the control member (30) axially with respect to the handle member (4); characterised bya needle bearing clutch (130) disposed in the handle member (4), the shaft (54) engageable with the needle bearing clutch (130) for limiting rotation of the shaft (54) to only one direction.
- A handle apparatus according to claim 1, wherein the outer tubular member (110) extends distally from the control member (30), and the elongate inner member (90) is slidably disposed in the outer tubular member (110) and has a proximal end secured with respect to the handle member (4).
- A handle apparatus according to claim 2, wherein the control member (30) comprises a plurality of teeth (34) on a proximal end thereof, and the shaft (54) includes a gear (56) for engaging the plurality of teeth (34) on the control member (30) to couple rotation of the shaft (54) to axial displacement of the outer tubular member (110).
- A handle apparatus according to claim 1, wherein the shaft (54) is substantially perpendicular to the control member (30).
- A handle apparatus according to claim 2, wherein the control member (30) includes a groove (36) along a proximal end portion of the control member (30), and the handle member (4) includes a control member guide (16) for slidably receiving the control member (30) therethrough, the control member guide (16) including at least one guide pin (24) therein for engaging the groove (36) along the proximal end portion of the control member (30) to prevent rotation of the control member (30).
- A handle apparatus according to claim 2, the handle member (4) including an inner member recess (20), the elongate inner member (90) being detachably mounted within the inner member recess (20).
- A handle apparatus according to claim 1, wherein when the shaft (54) is rotated in the single direction and released, there is substantially no backlash of the control member (30).
- A system for delivering an endoluminal prosthesis within a body lumen of a patient, comprising:an endoluminal treatment device having an elongate inner member (90) slidably disposed within an outer tubular member (110);a handle member (4) adapted to be mounted to the elongate inner member (90), the elongate inner member (90) being axially fixed with respect to the handle member (4); anda control member (30) having an engagement member (38) adapted to engage the outer tubular member (110),the control member (30) is slidably coupled to the handle member (4);the outer tubular member (110) extends distally from the control member (30); andthe system further comprises a shaft (54) rotatably mounted to the handle member (4), characterised by the shaft (54) including a gear (56) coupled to the control member (30) such that rotation of the shaft (54) displaces the outer tubular member (110) axially with respect to the elongate inner member (90); anda needle bearing clutch (130) disposed in the handle member (4), the shaft (54) engageable with the needle bearing clutch (130) for limiting rotation of the shaft (54) to only one direction, such that when the shaft (54) is rotated in the one direction, the outer tubular member (110) is directed from a distal position to a proximal position.
- The system of claim 8, further comprising a prosthesis within the outer tubular member (110) proximate its distal end.
- The system of claim 9, wherein the prosthesis is deployed from the distal end of the outer tubular member (110) by rotation of the shaft (54) in the one direction.
- The system of claim 8, wherein the control member (30) further comprises a rail portion (32) for engaging the gear (56) of the shaft (54), and an engagement portion (38) at a distal end of the rail portion (32) for coupling the outer tubular member (110) to the control member (30).
- The system of claim 11, wherein the rail portion (32) includes a plurality of teeth (34) thereon, and the gear (56) includes a plurality of teeth (57) thereon for engaging with the teeth (34) of the rail portion (32).
- The system of claim 8, wherein the shaft (54) is oriented substantially perpendicular to the control member (30).
- The system of claim 11, wherein the rail portion (32) includes a groove (36) disposed thereon, and the handle member (4) includes at least one guide pin (24) therein, the at least one guide pin (24) engaging with the groove (36) contained in the rail portion (32).
- The system of claim 8, wherein the handle member (4) includes an inner member recess (20) for securing the elongate inner member (90) to the handle member (4).
- A handle apparatus according to claim 1, wherein
the handle member (4) includes a grip portion (6) and a body portion (8), the body portion (8) including a transverse bore (10) and a control member guide (16) therein that at least partially intersect one another;
the needle bearing clutch (130) is disposed in the body portion (8) coaxially with the transverse bore (10);
the control member (30) is slidable within the control member guide (16) of the body portion (8); and wherein the handle apparatus further comprises a control knob (50), the control knob (50) including the shaft (54) and a gear (56) thereon, the shaft (54) being rotatably disposed within the transverse bore (10) thereby being engageable with the needle bearing clutch (130) to allow rotation of the control knob (50) in only one direction, the gear (56) engaging with the control member (30) to couple axial movement of the control member (30) from a distal position to a proximal position with rotation of the control knob (50) in the one direction. - A handle apparatus according to claim 16, wherein the control member (30) includes a plurality of teeth (34) for engaging teeth (57) of the gear (56) on the control knob (50) to couple axial movement of the control member (30) to rotation of the control knob (50).
- A handle apparatus according to claim 16, wherein the transverse bore (10) is oriented substantially perpendicular to the control member guide (16).
- A handle apparatus according to claim 16, wherein the control member (30) includes a groove (36) disposed thereon, and the control member guide (16) includes at least one guide pin (24) therein, the at least one guide pin (24) engaging with the groove (36) of the control member (30).
- A handle apparatus according to claim 16, the handle member (4) including an inner member recess (20), the elongate inner member (90) being detachably mounted within the inner member recess (20).
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05076483.6A EP1637093B1 (en) | 2000-07-10 | 2001-06-11 | Stent delivery device |
EP16156920.7A EP3053550A1 (en) | 2000-07-10 | 2001-06-11 | Stent delivery device |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/613,872 US6527779B1 (en) | 2000-07-10 | 2000-07-10 | Stent delivery device |
US613872 | 2000-07-10 | ||
PCT/US2001/018910 WO2002003888A2 (en) | 2000-07-10 | 2001-06-11 | Stent delivery device |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16156920.7A Division EP3053550A1 (en) | 2000-07-10 | 2001-06-11 | Stent delivery device |
EP05076483.6A Division EP1637093B1 (en) | 2000-07-10 | 2001-06-11 | Stent delivery device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1299050A2 EP1299050A2 (en) | 2003-04-09 |
EP1299050B1 true EP1299050B1 (en) | 2005-11-23 |
Family
ID=24459000
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16156920.7A Withdrawn EP3053550A1 (en) | 2000-07-10 | 2001-06-11 | Stent delivery device |
EP01944456A Expired - Lifetime EP1299050B1 (en) | 2000-07-10 | 2001-06-11 | Stent delivery device |
EP05076483.6A Expired - Lifetime EP1637093B1 (en) | 2000-07-10 | 2001-06-11 | Stent delivery device |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16156920.7A Withdrawn EP3053550A1 (en) | 2000-07-10 | 2001-06-11 | Stent delivery device |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05076483.6A Expired - Lifetime EP1637093B1 (en) | 2000-07-10 | 2001-06-11 | Stent delivery device |
Country Status (8)
Country | Link |
---|---|
US (3) | US6527779B1 (en) |
EP (3) | EP3053550A1 (en) |
JP (1) | JP2004502492A (en) |
AT (1) | ATE310467T1 (en) |
CA (1) | CA2412638C (en) |
DE (1) | DE60115239T2 (en) |
ES (1) | ES2249448T3 (en) |
WO (1) | WO2002003888A2 (en) |
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US8808346B2 (en) | 2006-01-13 | 2014-08-19 | C. R. Bard, Inc. | Stent delivery system |
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US9801745B2 (en) | 2010-10-21 | 2017-10-31 | C.R. Bard, Inc. | System to deliver a bodily implant |
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- 2001-06-11 EP EP16156920.7A patent/EP3053550A1/en not_active Withdrawn
- 2001-06-11 EP EP01944456A patent/EP1299050B1/en not_active Expired - Lifetime
- 2001-06-11 JP JP2002508348A patent/JP2004502492A/en not_active Withdrawn
- 2001-06-11 AT AT01944456T patent/ATE310467T1/en active
- 2001-06-11 CA CA002412638A patent/CA2412638C/en not_active Expired - Lifetime
- 2001-06-11 WO PCT/US2001/018910 patent/WO2002003888A2/en active IP Right Grant
- 2001-06-11 EP EP05076483.6A patent/EP1637093B1/en not_active Expired - Lifetime
- 2001-06-11 ES ES01944456T patent/ES2249448T3/en not_active Expired - Lifetime
-
2003
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Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8062344B2 (en) | 2001-04-30 | 2011-11-22 | Angiomed Gmbh & Co. Medizintechnik Kg | Variable speed self-expanding stent delivery system and luer locking connector |
US7935141B2 (en) | 2005-08-17 | 2011-05-03 | C. R. Bard, Inc. | Variable speed stent delivery system |
US8808346B2 (en) | 2006-01-13 | 2014-08-19 | C. R. Bard, Inc. | Stent delivery system |
US9675486B2 (en) | 2006-01-13 | 2017-06-13 | C.R. Bard, Inc. | Stent delivery system |
US11026822B2 (en) | 2006-01-13 | 2021-06-08 | C. R. Bard, Inc. | Stent delivery system |
US9078779B2 (en) | 2006-08-07 | 2015-07-14 | C. R. Bard, Inc. | Hand-held actuator device |
US8500789B2 (en) | 2007-07-11 | 2013-08-06 | C. R. Bard, Inc. | Device for catheter sheath retraction |
US9421115B2 (en) | 2007-07-11 | 2016-08-23 | C. R. Bard, Inc. | Device for catheter sheath retraction |
US10206800B2 (en) | 2007-07-11 | 2019-02-19 | C.R. Bard, Inc. | Device for catheter sheath retraction |
US11026821B2 (en) | 2007-07-11 | 2021-06-08 | C. R. Bard, Inc. | Device for catheter sheath retraction |
US9801745B2 (en) | 2010-10-21 | 2017-10-31 | C.R. Bard, Inc. | System to deliver a bodily implant |
US10952879B2 (en) | 2010-10-21 | 2021-03-23 | C. R. Bard, Inc. | System to deliver a bodily implant |
Also Published As
Publication number | Publication date |
---|---|
CA2412638A1 (en) | 2002-01-17 |
WO2002003888A3 (en) | 2002-05-10 |
DE60115239T2 (en) | 2006-07-27 |
JP2004502492A (en) | 2004-01-29 |
US7033368B2 (en) | 2006-04-25 |
DE60115239D1 (en) | 2005-12-29 |
WO2002003888A2 (en) | 2002-01-17 |
EP1299050A2 (en) | 2003-04-09 |
ATE310467T1 (en) | 2005-12-15 |
EP3053550A1 (en) | 2016-08-10 |
CA2412638C (en) | 2009-08-11 |
US20060167467A1 (en) | 2006-07-27 |
EP1637093A2 (en) | 2006-03-22 |
EP1637093B1 (en) | 2016-02-24 |
ES2249448T3 (en) | 2006-04-01 |
US20030153941A1 (en) | 2003-08-14 |
US7819882B2 (en) | 2010-10-26 |
US6527779B1 (en) | 2003-03-04 |
EP1637093A3 (en) | 2010-02-24 |
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